It is essential that this 2G™ rigid core product is installed in accordance with these instructions as well as the applicable national standards and building codes for the installation of resilient flooring at the time of installation, to ensure a quality fit. Prior to installation, please check that this product is suited to the end use application. If in doubt, please contact your supplier.
This product is a floating floor with excellent acoustic, thermal and waterproof properties made rigid to assist installation over uneven subfloor surfaces. It will not absorb, swell or be damaged by water. When installed properly and under normal use, damp mopping and topical spills cleaned up promptly will not harm the performance of the floor. This product is not suitable for installation outdoors nor in rooms that will be continually wet. It is suitable for use in traditional residential bathrooms, kitchens, laundry/utility rooms.
Install permanent fixtures prior to installation of this product, leaving a space for expansion and contraction; see below.
Please refer to section Installation procedure as to when sealant is permitted in expansion gaps. A separate underlay is not normally recommended; refer to floor covering supplier for details.
National standards and building codes
- United States and Canada: ASTM F710 / ASTM F1482
For commercial installations make sure flooring materials are removed from packaging at least 48 hours prior to installation (planks/tiles may be stacked but must be rested flat) and allowed to condition in the room where the installation is to take place. Room temperature must be kept between 65-85°F (USA) or 18-27°C (Canada).
For residential installations acclimation is generally not essential if the product temperature is already in the range 65-85°F or 18-27°C but if the product has been exposed to extreme temperatures prior to installation, acclimation is required.
Subfloor preparation must comply with ASTM F710 or ASTM F1482 and in strict accordance with these installation guidelines. Before this product may be installed, all subfloors should be solid and sound, smooth and level, clean and swept free of all debris.
Any unevenness in the subfloor should be limited to a maximum of 1/8” below the level for 6’ in any direction.
Any isolated highpoints/ridges should first be removed to avoid damage to the product. Larger differences in height may need to be levelled out by filling the entire surface of the floor. Additional guidance on subfloor preparation is provided by the national standards and building codes for the installation of resilient flooring listed on page 1. If in doubt, please contact your supplier.
Moisture of the base subfloor (e.g. concrete) must be measured according to ASTM F1869 (Calcium Chloride) or ASTM F2170 (RH). The moisture limits for Korlok Select are 8lbs. (Calcium Chloride or 95% (RH).
For any subfloor showing a moisture value above these limits, a suitable damp proof membrane / moisture suppression system must be used.
NOTE: Wood subfloors should be checked and measured for moisture not to exceed 13%.
For detailed installation steps please see Installation steps
NOTE: Rigid core/hybrid flooring should be protected from heat and/or prolonged exposure to direct sunlight as this may cause damage to your floor. See section Sunrooms / conservatories / 3 season rooms.
This product should be installed with a minimum expansion gap of 3/16” (5 mm) around the perimeter of the room and all fixed objects, including pipes. This minimum must be increased to 5/16” (8 mm) for areas larger than 1000 sq. ft./100 m² (consult your supplier for larger areas). NOTE: the minimum expansion gap is defined as the smallest gap between product and static fixture, that can be measured at ANY point around the perimeter.
To allow for thermal expansion, door frames should either be undercut, or an expansion gap left. Skirting/base boards should either be removed or undercut. Alternatively, a suitable edge trim should be used to cover the expansion gap. Moldings or skirtings/base boards installed post floor installation should be fixed to the wall and NOT to the floor covering, leaving a 0.5mm clearance between these and the floor surface.
In potential wet areas where it is necessary to protect the expansion gap between fixed furniture and the flooring product from potential water exposure, a flexible acrylic or flexible low modulus neutral cure silicone sealant may be used. Sealant should not be used for the general filling of expansion gaps.
The potential wet area is to be isolated from the main field using an expansion joint system or similar at door junctions.
NOTE: As a guide we recommend a maximum net sealed area of 43 sq.ft. (4 m²). For larger areas please consult your supplier.
Where the flooring run exceeds 50 ft. (15 m) in width or length, a 5/16” (8 mm) expansion joint should be used and repeated thereafter.
Special care must be taken when installing this product in rooms that are exposed to large temperature fluctuations e.g. unheated rooms, sunrooms/conservatories or direct sun through glass doors, as incorrect use of expansion gaps can cause damage. In these cases, a minimum 3/8” (10mm) expansion gap should be used.
This product is not suited to use in saunas/similar. Floors should be adequately protected in the vicinity of stoves/open fireplaces.
NOTE: Rigid core/hybrid flooring should be protected from heat and/or prolonged exposure to direct sunlight as this may cause damage to your floor.
- Concrete/Screed (ASTM F710): Where the subfloor is uneven an appropriate smoothing compound should be selected.
- Quarry Tiles/Mosaics/Terrazzo/Ceramics: Ensure the surface is firm, dry and free of wax, oil and dust particles. Fix any loose tiles. Level any grout lines with a width and/or depth of more than 3/16” (5 mm).
- Wood Subfloors (ASTM F1482): These should be solid with minimal flexibility. All loose boards must be firmly fastened, gaps filled and undulations removed. Where necessary, overlay floorboards with flooring grade plywood or similar underlay.
- Woodblock/Parquet Floors: Make sure these floors are solid and fix any loose or broken areas. Any wood in direct contact with concrete must be removed prior to installation.
- Metal and Painted Floors: Remove any loose paint or other finishes.
- Linoleum/Thermoplastic/Vinyl/Cork: Make sure these floors are solid and fix any loose or broken areas.
- Any existing floors installed with asphaltic tile adhesive (ATA or ‘Cutback’) must first be suitably covered/encapsulated or mechanically removed.
- Textile floor coverings (including carpet) must be removed.
- Laminate: or any floating floor: Must be removed prior to installing any Karndean flooring.
- Asbestos: Some older resilient tiles and adhesives can contain asbestos. Asbestos and asbestos adhesive residue must be mechanically abated by a professional abatement company prior to installing any LVT. In case of doubt contact the relevant authority for advice on removal and disposal.
- Other Floors: Consult your supplier.
Underfloor Heating: It is possible to install this product over floors incorporating underfloor heating, but these must be controlled to keep the temperature at the interface between the backing and subfloor surface at no more than 85°F* or 27°C.
Electrical Underfloor Heating: Please consult manufacturer to ensure their system is compatible with this flooring. Mesh / wire systems must be bedded into a base coat of appropriate primer & levelling compound to cover the wires or mesh by consulting your underlayment supplier.
NOTE: Underfloor heating may affect moisture levels. Consult your supplier for details.
- Regularly sweep the floor to remove loose dirt or grit as these can cause fine scratches.
- For a thorough clean, a range of pH neutral cleaning products are available (‘Clean’, ‘Remove’ & ‘Refresh’). Avoid the use of regular household cleaners and bleachbased detergents. These could make the floor slippery or cause discolouration.
- Always mop up spills as soon as possible, to reduce the risk of slipping and possible staining. • Use entrance mats to protect against grit and moisture. Ensure they are of non-staining variety (not rubberbacked) to prevent any discolouration of the floor.
- Avoid sliding or dragging furniture or other objects across the floor - use floor protector pads to prevent scratching.
- Use large castor cups or other means to protect against indentation from heavy furniture.
- Maintain room temperature between 65-85°F* or 18-27°C for optimum performance.
- Do not subject this product to standing water. This this will present a slip hazard.
- Care must be taken when using underfloor heating to avoid damage to the floor caused by localised ‘hot spots/thermal blocks’. Care must also be taken in placing rugs, and items of furniture which do not allow hot air circulation.
- The floor must be protected from excessive heat and/or prolonged exposure to direct sunlight as this may cause damage to your floor.
- Floor care guides are available from your supplier or the website. Refer to your supplier should floor tiles/planks become damaged.
Pattern Layout: Measure to find the center of the room on the start wall and the finish wall (Fig 1).
Measure 2 1/8” (54 mm) for 6” width planks (Fig 2a) OR 2 ½” (63mm) for 7” width planks (Fig 2b) from the left and right of the center mark at both ends of the room and strike a chalk line.
Open several cartons/boxes of the material. The planks will be marked “A” and “B” on the back (diagram below). Separate the different planks in stacks keeping the edges the same direction (Fig 3). Shuffle the planks in each stack to achieve a more natural look, for installation.
Take one “A” plank and one “B” plank and place as shown below. Tilt the leading edge of plank B, slide the joint together and lay flat (Fig 4a & 4b).
This is the starting angle. Note: 3/16” (5 mm) spacers are required at all walls or vertical abutments.
- Line up the outside corner edge of the “A” plank with the inside corner on the opposite line position (Fig 5).
Continue installing planks without cutting them, working in opposite directions. Verify that the installed planks are straight on the lines. (Fig 6). carefully tap the plank/tile together flat on the floor.
Begin at the ‘Finish wall’ and slide the end joint of a ‘B’ plank into the side of an ‘A’ plank. Slide the ‘B’ plank back into the end of the ‘A’ plank at a slight angle until tight (Fig 7). Note: if there is any drift off the centre line, the product can be moved back and forth across the floor (Fig 7).
Continue installing ‘B’ planks. Repeat on the other side of the row of original ‘B’ planks with the ‘A’ planks. Complete the installation, using the same method whilst keeping the expansion spacers in place and the pattern square (Fig 8).
Cutting and installing planks at the walls should be done as follows: Measure and mark the planks as shown in the diagram. The angle for the wall can be determined using an angle finder (see below) (Fig 9).
2G™ is a patented technology invented by Välinge Innovation AB. The 2G™ word mark and logo are registered trademarks owned by Välinge Innovation AB and any use of such marks is under license.